Apparatus for fire-polishing glassware.



L. LEVIEN & C. B. DUNCAN.

APPARATUS FOR FIRE POLISHING GLASSWARE.

APPLICATION FILED DBC. 10, 1910.

1,088,909, Patented Sept. 17, 191.2.4

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L. LEVIEN & C. B. DUNCAN.

APPARATUS POB. FIRE POLISHING GLASSWARE.

APPLICATION FILED DB0. 1o. 1910.

1,038,909. Patented Sept. 17, 1912.

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UNrTEn STATES PATENT oEErcE.`

LOUIS LEVIEN, OF NEW YORK, N. Y., AND CHARLES B. DUNCAN, OF NESHANICSTA- TION, NEW JERSEY; SAID DUNCAN ASSIGNOR T0 SAID LEVIEN.

APPARA'IUS FOR FIRE-POLISHING GLASSWARE.

Specification of Letters Patent.

Patented Sept. 1'?, 1912.

To all whom t may concern,

Be it known that we, LOUIS LEvmN and CHARLES B. DUNCAN, citizens of theUnited States, and residents of New York, in the county and State of NewYork, and Neshanic Station, in the county of Somerset and State of NewJersey, respectively, have invented certain new and useful Improvementsin Apparatus for Fire Polishing Glassware; and we do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same.

This invention relates to improvements in an apparatus for polishing aglass article by reheating.

The object in view is the provision of means which will permit thereheating of a glass article either while in the mold or out of the moldwith equal advantage for polishing the surface reheated.

A further object of the invention is the arrangement in an apparatus forpolishing glass ware of improved means for evenly distributing heat tothe surface to be glazed or polished.

With these and other objects in View the invention comprises certainnovel constructions, combinations, and arrangement of parts as will behereinafter more fully described and claimed.

In the accompanying drawings: Figure l is a longitudinal verticalsection through an embodiment of the invention. Fig. 2 is a top planview of the structure shown in Fig. l. Fig. 3 is a longitudinal verticalsection through a Slightly modified form of the invention. Fig. 4 is atop plan view of the structure shown in Fig. 3. Fig. 5 is a plan view ofone of the paddles or tongs.

In forming an apparatus embodying the invention the same is designed toheat the surface of an article, as for instance a glass article, forpolishing the same. The construction involved provides means which applyheat from beneath the article so that the natural law followed by heatrising will result in applying practically all of the heat to thearticle without necessarily causing the flame or heated air to impingestrongly against the article.

In carrying out the invention a furnace of any desired or usualstructure is connected with a table or bench of any kind, and the clayor other lining of the furnace is caused to project slightly above thetable. Around and over this lining is fitted a heat spreader, preferablysemi-globular in form, and provided with a large number of perforatio-nsfor evenly distributing the heat, including the flame, to the articlebeing heated. Preferably the apertures are arranged farther apart andsmaller immediately above the furnace than around the sides, so thatwhere there is a less pressure for forcing the heated air and flamethrough the apertures there will be larger and more numerous apertures.The article being heated is placed on a ring, either provided with anasbest-os pad or not as preferred, which ring is designed to be removedby tongs or paddles when the article has been heated to the desiredextent. This will result in the removal of the article without removingthe defiector, so that a new ring may be supplied and a new articlewithout the necessity of supplying a new deector.

In order that the invention may be more clearly understood nanembodiment of the same is shown in the accompanying drawings in whichlindicates a furnace of any desired kind secured to the under surface ofa table or bench 2. The furnace l is provided with a lining 3,preferably of clay, which projects through the table 2, and also througha covering of asbestos 4. An asbestos ring o-r packing 5 may be providedif desired for preventing any undue heating of the table 2 by lining 3.

Resting on the asbestos cover 4 is a ring 6 formed with a flange 7. Thering 6 may be made of metal or other fire resisting material and isdesigned to fit loosely over the upper end of lining 3 and be held inplace by deflector 8, hereinafter described. The heat coming up from thefurnace will be directed into the heat deflecting member 8 which restsloosely on the asbestos cover 4 and is held in place by ring 6 andlining 3. The article, as for instance a glass bowl 9, is designed torest on ring 6. The deflector 8 is designed to be of the same contour asthe interior of the article 9 for causing the proper and uniformdistribution of heat over the inner surface of the article. After thearticle 9 has been placed in position, as shown in Fig. l, and the llameturned on in the usual manner, the inner surface of article 9 will beheated to the desired extent, and then ring 6 will be removed, togetherwith article 9. Preferably the ring is removed quickly so as to permit aquick chilling of the heated surfaceof `article 9. The de- Hector 8 maybe made of asbestos or other heat resisting material, and may be made ofany desired thickness.

In the form of the invention shown in Figs. 3 and 4 the article isdesigned to be removed quickly, either while the heat is applied orafter the same has been shut off, without removing the deHector. Thiswill cause a quick chilling action, and this form of the invention ispreferable when such quick chilling action of the heated surface isdesired. In this form of the invention the ring 6 is provided withHanges 10 and 11, and with an asbestos pad 12. The flange 10 ispreferably made only sufHciently high for preventing the accidentalremoval of the pad 12, while flange 11 is made slightly higher thanflange 10 so as to prevent the accidental removal of the article 9. Informing the ring 6 the flange 11 is preferably bent up therefrom so asto form a rounded corner 13 in order to permit the easy entrance beneaththe ring of paddle 14. Paddle 14 is formed with an offset or shoulderedportion 15 struck on the arc of a circle so as to snugly fit against theouter surface of ring 6 while the inner beveled edge 16 is also struckon the same arc in order that the same will conform to the bore of thering 6. The beveled portion, together with the rounded portion 13 ofring 6, permits the easy insertion of the paddle beneath ring 6 whilethe ring is resting on the asbestos cover 4. Arranged to surround thelining 3 of furnace 1 but within the bore of ring 6 is a deHectorretaining ring 17 which extends upward and forms a deHector 8 havingapertures similar to the apertures in de- Hector 8. This deflector ismade, of course, to conform to the contour of the article 9. By thearrangement of the ring 17 the table and ring 6 are shielded to av largeextent from the heat directed against the inner surface of the article9. After an article has been placed on ring 6 the heat is turned on andthe inner surface of the article heated to the desired extent. When theinner surface has been heated to the desired extent the article isquickly removed by placing paddles 14 in position and lifting the ring 6and the article 9 from their positions over the furnace. It will benoted that the article is removed without being touched by anyinstrument, so that no injury will result in its removal.

The article 9 may be placed on rings 6 and 6 respectively, either withthe molds removed, as shown, or with the molds still surrounding thearticles.

It will be noted that by the arrangement set forth the heat is projectedagainst the article from beneath so that by the natural action of heatin rising the heat will be evenly distributed over the surface to beheated which is not always true of devices where the Hame is projecteddownward into the article.

What we claim is:

1. In a lire polishing apparatus, a table, a Hue extending upwardlythrough the table for directing heat and Hame in an upward direction, aperforated deHector placed over the upper end of said flue andmaintaining itself in position extending above the table by its owngravity, said deHector being provided with a plurality of apertures,said apertures being smaller at the upper portion of the deHector andincreasing in size toward the lower edge, and a supporting ring forsupporting a dish over and to substantially inclose said deHector, saidring being formed with an upstanding flange for maintaining the dish inposition.

2. In a fire polishing apparatus, a table formed with an aperturetherein, a flue extending upwardly through said table and projectingslightly beyond the upper edge of the table for directing heat and Hamein an upward direction through the table, a de- Hector arranged over theupper end of said Hue formed with an inwardly extending annular Hangeengaging said Hue for holding the deHector centered over the Hue, saidHue being formed with a plurality of apertures, and means for supportingan article to be polished adjacent the upper and outer surface of saiddeHector, whereby the heat and flame from said flue will besubstantially evenly distributed to the article.

3. In a fire polishing apparatus, a table formed with an aperturetherein, a tube proj ecting through said aperture and extending abovesaid table designed to guide heat and Hame upwardly through said table,a ring of fire resisting material surrounding the upper end of said tubeand spacing the same from said table, a sheet of fire resisting materialarranged on said table and formed with an aperture designed toaccommodate said ring, a deHector fitting over said tube and restingagainst said ring and against said tube whereby the same is held bygravity in position and held against lateral displacement, said deHectorbeing formed with a plurality of apertures, and means resting on saidsheet of fire resisting material for supporting an article to bepolished adjacent the exterior surface of said de- Hector.

4. In a lire polishing apparatus, a table,

a Hue extending upwardly through the table, a substantiallysemi-spherical deHector emplaced over the upper end of the Hue andextending above the table, saidl deHectorI being provided with smallopenings at its top Which increase in size toward its lower edge.

5. In a fire polishing apparatus, a table formed With an aperturetherein, a tube fitting into said aperture for projecting heat and flamethrough the table, iire resisting material surrounding the upper part ofsaid tube and covering part of said table around said aperture, aperforated deiector inclosing the upper end of said tube, a ringsubstantially U-shaped in cross section surrounding said deector, and aring of lire resisting material positioned in said first mentioned ringfor supporting an article above and adjacent said deiector.

In testimony whereof We affix our signatures in presence of twoWitnesses.

LOUIS LEVIEN. CHARLES B. DUNCAN. Witnesses:

I-IUGo Moon, B. ROMAN.

Copies of this patent may be obtained for iive cents each, by addressingthe Commissioner of Patents, Washington, D. C.

